Gwen Renée Stefani (born October 3, 1969) is an American singer and songwriter. She is a co-founder, lead vocalist, and the primary songwriter of the band No Doubt, whose singles include "Just a Girl", "Spiderwebs", and "Don't Speak", from their 1995 breakthrough studio album Tragic Kingdom , as well as "Hey Baby" and "It's My Life" from later albums.